; This test checks to see if the CEE pass is applying jump-bypassing for values ; determined by PHI nodes. Because we are coming from a particular block, we ; know what value a PHI node will take on this edge and should exploit it. ; ; This testcase comes from the following C code: ; void bar(void); ; void foo(int c) { ; int i = c ? 2 : 8; ; while (i < 20) { ; bar (); ; i++; ; } ; } ; ; RUN: llvm-as < %s | opt -cee -simplifycfg | llvm-dis | not grep bb3 implementation declare void %bar() void %foo(int %c) { bb0: ; No predecessors! %cond215 = seteq int %c, 0 ; [#uses=1] br bool %cond215, label %bb3, label %bb4 bb3: ; preds = %bb0 br label %bb4 bb4: ; preds = %bb3, %bb0 %reg110 = phi int [ 8, %bb3 ], [ 2, %bb0 ] ; [#uses=2] %cond217 = setgt int %reg110, 19 ; [#uses=1] br bool %cond217, label %bb6, label %bb5 bb5: ; preds = %bb5, %bb4 %cann-indvar = phi int [ 0, %bb4 ], [ %add1-indvar, %bb5 ] ; [#uses=2] %add1-indvar = add int %cann-indvar, 1 ; [#uses=1] %reg111 = add int %cann-indvar, %reg110 ; [#uses=1] call void %bar( ) %reg112 = add int %reg111, 1 ; [#uses=1] %cond222 = setle int %reg112, 19 ; [#uses=1] br bool %cond222, label %bb5, label %bb6 bb6: ; preds = %bb5, %bb4 ret void }